Toyota bulletin T-SB-0112-24 REV1
What it saysSome 2018 – 2021 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit a condition in which an “Engine Maintenance Required” message is displayed in the Multi-Information Display… NHTSA’s full summary ↓
Toyota filed this with NHTSA as a service bulletin dated Jan 5, 2025, received Feb 12, 2025, about the engine — 1 document under this number: T-SB-0112-24 Rev1. It names 18 model years (2018–2021). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationSome 2018 – 2021 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit a condition in which an “Engine Maintenance Required” message is displayed in the Multi-Information Display (MID). Additionally, the vehicle will exhibit DTC(s) P268111 (Engine Coolant Bypass Valve Circuit Short to Ground) and/or P268115 (Engine Coolant Bypass Valve Circuit Short to Battery or Open).
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| T-SB-0112-24 Rev1 | Service bulletin | Jan 5, 2025 | 11014174 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 16671-F2010 | Valve, Water | 1 | eBay Motors → |
| 16671-F2030 | Valve, Water | 1 | eBay Motors → |
| 16260-F0010 | Hose Assy, Water By-Pass, No. 1 | — | eBay Motors → |
| 16260-F0300 | Hose Assy, Water By-Pass, No. 1 | — | eBay Motors → |
| 16260-F0021 | Highlander HV | — | eBay Motors → |
| 16260-F0310 | Highlander HV | — | eBay Motors → |
| 16260-F0100 | Sienna HV | — | eBay Motors → |
| 16260-F0330 | Sienna HV | — | eBay Motors → |
| 16260-F0140 | Sienna HV (Mexico Spec) | — | eBay Motors → |
| 16260-F0340 | Sienna HV (Mexico Spec) | — | eBay Motors → |
| 00272-SLLC2 | Coolant – Super Long Life | 1 | eBay Motors → |
Read by machine from the document NHTSA serves (10 pages), read Sep 30, 2026. A part number is shown only where it matches Toyota’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 18 model years this bulletin names have filed 5,646 complaints with NHTSA since 2015. 996 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2018 Toyota Camry, the 68 owners who gave an odometer reading for Engine reported it at a median of 20,600 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Excessive oil consumption - new vehicle newly purchased 2019 Toyota Avalon xle (6 cyl) has excessive oil consumption. Required addition of 2 quarts of oil at 2,000 miles. No leaks evident under car. At 3,100 "low oil" light came on, but could not check because dealer taped dipstick to prevent me from checking. Dealer tearing apart engine
2019 Toyota Avalon · Engine · filed with NHTSA Aug 23, 2019 · ODI 11246041
Engine coolant smell after driving. Doesnt matter how long I drove, 10 minutes or 6 hours, smell is there. Smell is sronger from driver side. Dealership told me it just does that! That they let sit in the parking lot running for an hour and there was no leak. It only has 10k miles on it. It shouldn't reek of hot coolant at all!
2020 Toyota Camry · Engine · filed with NHTSA Sep 19, 2020 · ODI 11359920
I rented a 2019 Toyota Camry for 9 days. Many times while accelerating the engine lost power. It was especially dangerous when attempting turns in front of ongoing traffic. The car would start to go then just seem to die as I was making the turn. Then engine lights would come on and it would just start coasting.
2019 Toyota Camry · Engine · filed with NHTSA Jul 9, 2019 · ODI 11230508
In depth: 2020 Toyota Camry engine problems → · 2019 Toyota Camry engine problems → · 2018 Toyota Camry engine problems → · 2020 Toyota Corolla engine problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group67 other manufacturer communications filed against these Toyota models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Toyota list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| T-SB-0034-26 REV1 | Service bulletin | Sep 16, 2026 | Some 2025 – 2026 model year Camry HV vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P0A1B94… |
| T-SB-0110-20 OBSOLETE | Service bulletin | Aug 20, 2026 | OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26. |
| T-SB-0051-26 | Service bulletin | Aug 20, 2026 | This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. |
| 26TC03 | Service campaign | Aug 17, 2026 | In wet conditions, water contacting the radiator in the subject vehicles after idling for an extended period can create steam that can cause… |
| 24TE04 | Warranty extension | Aug 11, 2026 | This Customer Support Program provides coverage as it applies to Flow Shut-off Valve Coolant Leak on Certain 2019-2021 Avalon & Avalon HV, 2… |
| T-TT-0806-26 | Service bulletin | Jul 22, 2026 | State of Health (SOH): An estimate of battery health that is updated as the vehicle learns from operating and charging conditions over time.… |
| T-SB-0034-26 | Service bulletin | Jun 30, 2026 | Some 2025 — 2026 model year Camry HV vehicles may exhibit a MIL on condition with DTC P0A1B94… |
| T-TT-0801-26 | Service bulletin | Apr 16, 2026 | Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 cha… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Toyota, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Toyota T-SB-0112-24 REV1 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the T-SB-0112-24 REV1 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Toyota warranty extension on file lists the ones Toyota has filed.
Which vehicles does T-SB-0112-24 REV1 cover?
The manufacturer filed it against 18 model years: 2021 Toyota Avalon, 2020 Toyota Avalon, 2019 Toyota Avalon, 2021 Toyota Camry, 2020 Toyota Camry, 2019 Toyota Camry and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.